<?php

// +----------------------------------------------------------------------

// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]

// +----------------------------------------------------------------------

// | Copyright (c) 2006-2013 http://thinkphp.cn All rights reserved.

// +----------------------------------------------------------------------

// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )

// +----------------------------------------------------------------------

// | Author: liu21st <liu21st@gmail.com>

// +----------------------------------------------------------------------

namespace Think;

/**

 * ThinkPHP内置模板引擎类

 * 支持XML标签和普通标签的模板解析

 * 编译型模板引擎 支持动态缓存

 */

class  Template {



    // 模板页面中引入的标签库列表

    protected   $tagLib          =   array();

    // 当前模板文件

    protected   $templateFile    =   '';

    // 模板变量

    public      $tVar            =   array();

    public      $config          =   array();

    private     $literal         =   array();

    private     $block           =   array();



    /**

     * 架构函数

     * @access public

     */

    public function __construct(){

        $this->config['cache_path']         =   C('CACHE_PATH');

        $this->config['template_suffix']    =   C('TMPL_TEMPLATE_SUFFIX');

        $this->config['cache_suffix']       =   C('TMPL_CACHFILE_SUFFIX');

        $this->config['tmpl_cache']         =   C('TMPL_CACHE_ON');

        $this->config['cache_time']         =   C('TMPL_CACHE_TIME');

        $this->config['taglib_begin']       =   $this->stripPreg(C('TAGLIB_BEGIN'));

        $this->config['taglib_end']         =   $this->stripPreg(C('TAGLIB_END'));

        $this->config['tmpl_begin']         =   $this->stripPreg(C('TMPL_L_DELIM'));

        $this->config['tmpl_end']           =   $this->stripPreg(C('TMPL_R_DELIM'));

        $this->config['default_tmpl']       =   C('TEMPLATE_NAME');

        $this->config['layout_item']        =   C('TMPL_LAYOUT_ITEM');

    }



    private function stripPreg($str) {

        return str_replace(

            array('{','}','(',')','|','[',']','-','+','*','.','^','?'),

            array('\{','\}','\(','\)','\|','\[','\]','\-','\+','\*','\.','\^','\?'),

            $str);        

    }



    // 模板变量获取和设置

    public function get($name) {

        if(isset($this->tVar[$name]))

            return $this->tVar[$name];

        else

            return false;

    }



    public function set($name,$value) {

        $this->tVar[$name]= $value;

    }



    /**

     * 加载模板

     * @access public

     * @param string $tmplTemplateFile 模板文件

     * @param array  $templateVar 模板变量

     * @param string $prefix 模板标识前缀

     * @return void

     */

    public function fetch($templateFile,$templateVar,$prefix='') {

        $this->tVar         =   $templateVar;

        $templateCacheFile  =   $this->loadTemplate($templateFile,$prefix);

        Storage::load($templateCacheFile,$this->tVar,null,'tpl');

    }



    /**

     * 加载主模板并缓存

     * @access public

     * @param string $tmplTemplateFile 模板文件

     * @param string $prefix 模板标识前缀

     * @return string

     * @throws ThinkExecption

     */

    public function loadTemplate ($tmplTemplateFile,$prefix='') {

        if(is_file($tmplTemplateFile)) {

            $this->templateFile    =  $tmplTemplateFile;

            // 读取模板文件内容

            $tmplContent =  file_get_contents($tmplTemplateFile);

        }else{

            $tmplContent =  $tmplTemplateFile;

        }

         // 根据模版文件名定位缓存文件

        $tmplCacheFile = $this->config['cache_path'].$prefix.md5($tmplTemplateFile).$this->config['cache_suffix'];



        // 判断是否启用布局

        if(C('LAYOUT_ON')) {

            if(false !== strpos($tmplContent,'{__NOLAYOUT__}')) { // 可以单独定义不使用布局

                $tmplContent = str_replace('{__NOLAYOUT__}','',$tmplContent);

            }else{ // 替换布局的主体内容

                $layoutFile  =  THEME_PATH.C('LAYOUT_NAME').$this->config['template_suffix'];

                $tmplContent = str_replace($this->config['layout_item'],$tmplContent,file_get_contents($layoutFile));

            }

        }

        // 编译模板内容

        $tmplContent =  $this->compiler($tmplContent);

        Storage::put($tmplCacheFile,trim($tmplContent),'tpl');

        return $tmplCacheFile;

    }



    /**

     * 编译模板文件内容

     * @access protected

     * @param mixed $tmplContent 模板内容

     * @return string

     */

    protected function compiler($tmplContent) {

        //模板解析

        $tmplContent =  $this->parse($tmplContent);

        // 还原被替换的Literal标签

        $tmplContent =  preg_replace_callback('/<!--###literal(\d+)###-->/is', array($this, 'restoreLiteral'), $tmplContent);

        // 添加安全代码

        $tmplContent =  '<?php if (!defined(\'THINK_PATH\')) exit();?>'.$tmplContent;

        // 优化生成的php代码

        $tmplContent = str_replace('?><?php','',$tmplContent);

        // 模版编译过滤标签

        Hook::listen('template_filter',$tmplContent);

        return strip_whitespace($tmplContent);

    }



    /**

     * 模板解析入口

     * 支持普通标签和TagLib解析 支持自定义标签库

     * @access public

     * @param string $content 要解析的模板内容

     * @return string

     */

    public function parse($content) {

        // 内容为空不解析

        if(empty($content)) return '';

        $begin      =   $this->config['taglib_begin'];

        $end        =   $this->config['taglib_end'];

        // 检查include语法

        $content    =   $this->parseInclude($content);

        // 检查PHP语法

        $content    =   $this->parsePhp($content);

        // 首先替换literal标签内容

        $content    =   preg_replace_callback('/'.$begin.'literal'.$end.'(.*?)'.$begin.'\/literal'.$end.'/is', array($this, 'parseLiteral'),$content);



        // 获取需要引入的标签库列表

        // 标签库只需要定义一次，允许引入多个一次

        // 一般放在文件的最前面

        // 格式：<taglib name="html,mytag..." />

        // 当TAGLIB_LOAD配置为true时才会进行检测

        if(C('TAGLIB_LOAD')) {

            $this->getIncludeTagLib($content);

            if(!empty($this->tagLib)) {

                // 对导入的TagLib进行解析

                foreach($this->tagLib as $tagLibName) {

                    $this->parseTagLib($tagLibName,$content);

                }

            }

        }

        // 预先加载的标签库 无需在每个模板中使用taglib标签加载 但必须使用标签库XML前缀

        if(C('TAGLIB_PRE_LOAD')) {

            $tagLibs =  explode(',',C('TAGLIB_PRE_LOAD'));

            foreach ($tagLibs as $tag){

                $this->parseTagLib($tag,$content);

            }

        }

        // 内置标签库 无需使用taglib标签导入就可以使用 并且不需使用标签库XML前缀

        $tagLibs =  explode(',',C('TAGLIB_BUILD_IN'));

        foreach ($tagLibs as $tag){

            $this->parseTagLib($tag,$content,true);

        }

        //解析普通模板标签 {tagName}

        $content = preg_replace_callback('/('.$this->config['tmpl_begin'].')([^\d\s'.$this->config['tmpl_begin'].$this->config['tmpl_end'].'].+?)('.$this->config['tmpl_end'].')/is', array($this, 'parseTag'),$content);

        return $content;

    }



    // 检查PHP语法

    protected function parsePhp($content) {

        if(ini_get('short_open_tag')){

            // 开启短标签的情况要将<?标签用echo方式输出 否则无法正常输出xml标识

            $content = preg_replace('/(<\?(?!php|=|$))/i', '<?php echo \'\\1\'; ?>'."\n", $content );

        }

        // PHP语法检查

        if(C('TMPL_DENY_PHP') && false !== strpos($content,'<?php')) {

            E(L('_NOT_ALLOW_PHP_'));

        }

        return $content;

    }



    // 解析模板中的布局标签

    protected function parseLayout($content) {

        // 读取模板中的布局标签

        $find = preg_match('/'.$this->config['taglib_begin'].'layout\s(.+?)\s*?\/'.$this->config['taglib_end'].'/is',$content,$matches);

        if($find) {

            //替换Layout标签

            $content    =   str_replace($matches[0],'',$content);

            //解析Layout标签

            $array      =   $this->parseXmlAttrs($matches[1]);

            if(!C('LAYOUT_ON') || C('LAYOUT_NAME') !=$array['name'] ) {

                // 读取布局模板

                $layoutFile =   THEME_PATH.$array['name'].$this->config['template_suffix'];

                $replace    =   isset($array['replace'])?$array['replace']:$this->config['layout_item'];

                // 替换布局的主体内容

                $content    =   str_replace($replace,$content,file_get_contents($layoutFile));

            }

        }else{

            $content = str_replace('{__NOLAYOUT__}','',$content);

        }

        return $content;

    }



    // 解析模板中的include标签

    protected function parseInclude($content, $extend = true) {

        // 解析继承

        if($extend)

            $content    =   $this->parseExtend($content);

        // 解析布局

        $content    =   $this->parseLayout($content);

        // 读取模板中的include标签

        $find       =   preg_match_all('/'.$this->config['taglib_begin'].'include\s(.+?)\s*?\/'.$this->config['taglib_end'].'/is',$content,$matches);

        if($find) {

            for($i=0;$i<$find;$i++) {

                $include    =   $matches[1][$i];

                $array      =   $this->parseXmlAttrs($include);

                $file       =   $array['file'];

                unset($array['file']);

                $content    =   str_replace($matches[0][$i],$this->parseIncludeItem($file,$array,$extend),$content);

            }

        }

        return $content;

    }



    // 解析模板中的extend标签

    protected function parseExtend($content) {

        $begin      =   $this->config['taglib_begin'];

        $end        =   $this->config['taglib_end'];        

        // 读取模板中的继承标签

        $find       =   preg_match('/'.$begin.'extend\s(.+?)\s*?\/'.$end.'/is',$content,$matches);

        if($find) {

            //替换extend标签

            $content    =   str_replace($matches[0],'',$content);

            // 记录页面中的block标签

            preg_replace_callback('/'.$begin.'block\sname=[\'"](.+?)[\'"]\s*?'.$end.'(.*?)'.$begin.'\/block'.$end.'/is', array($this, 'parseBlock'),$content);

            // 读取继承模板

            $array      =   $this->parseXmlAttrs($matches[1]);

            $content    =   $this->parseTemplateName($array['name']);

            $content    =   $this->parseInclude($content, false); //对继承模板中的include进行分析

            // 替换block标签

            $content = $this->replaceBlock($content);

        }else{

            $content    =   preg_replace_callback('/'.$begin.'block\sname=[\'"](.+?)[\'"]\s*?'.$end.'(.*?)'.$begin.'\/block'.$end.'/is', function($match){return stripslashes($match[2]);}, $content);            

        }

        return $content;

    }



    /**

     * 分析XML属性

     * @access private

     * @param string $attrs  XML属性字符串

     * @return array

     */

    private function parseXmlAttrs($attrs) {

        $xml        =   '<tpl><tag '.$attrs.' /></tpl>';

        $xml        =   simplexml_load_string($xml);

        if(!$xml)

            E(L('_XML_TAG_ERROR_'));

        $xml        =   (array)($xml->tag->attributes());

        $array      =   array_change_key_case($xml['@attributes']);

        return $array;

    }



    /**

     * 替换页面中的literal标签

     * @access private

     * @param string $content  模板内容

     * @return string|false

     */

    private function parseLiteral($content) {

        if(is_array($content)) $content = $content[1];

        if(trim($content)=='')  return '';

        //$content            =   stripslashes($content);

        $i                  =   count($this->literal);

        $parseStr           =   "<!--###literal{$i}###-->";

        $this->literal[$i]  =   $content;

        return $parseStr;

    }



    /**

     * 还原被替换的literal标签

     * @access private

     * @param string $tag  literal标签序号

     * @return string|false

     */

    private function restoreLiteral($tag) {

        if(is_array($tag)) $tag = $tag[1];

        // 还原literal标签

        $parseStr   =  $this->literal[$tag];

        // 销毁literal记录

        unset($this->literal[$tag]);

        return $parseStr;

    }



    /**

     * 记录当前页面中的block标签

     * @access private

     * @param string $name block名称

     * @param string $content  模板内容

     * @return string

     */

    private function parseBlock($name,$content = '') {

        if(is_array($name)){

            $content = $name[2];

            $name    = $name[1];

        }

        $this->block[$name]  =   $content;

        return '';

    }



    /**

     * 替换继承模板中的block标签

     * @access private

     * @param string $content  模板内容

     * @return string

     */

    private function replaceBlock($content){

        static $parse = 0;

        $begin = $this->config['taglib_begin'];

        $end   = $this->config['taglib_end'];

        $reg   = '/('.$begin.'block\sname=[\'"](.+?)[\'"]\s*?'.$end.')(.*?)'.$begin.'\/block'.$end.'/is';

        if(is_string($content)){

            do{

                $content = preg_replace_callback($reg, array($this, 'replaceBlock'), $content);

            } while ($parse && $parse--);

            return $content;

        } elseif(is_array($content)){

            if(preg_match('/'.$begin.'block\sname=[\'"](.+?)[\'"]\s*?'.$end.'/is', $content[3])){ //存在嵌套，进一步解析

                $parse = 1;

                $content[3] = preg_replace_callback($reg, array($this, 'replaceBlock'), "{$content[3]}{$begin}/block{$end}");

                return $content[1] . $content[3];

            } else {

                $name    = $content[2];

                $content = $content[3];

                $content = isset($this->block[$name]) ? $this->block[$name] : $content;

                return $content;

            }

        }

    }



    /**

     * 搜索模板页面中包含的TagLib库

     * 并返回列表

     * @access public

     * @param string $content  模板内容

     * @return string|false

     */

    public function getIncludeTagLib(& $content) {

        //搜索是否有TagLib标签

        $find = preg_match('/'.$this->config['taglib_begin'].'taglib\s(.+?)(\s*?)\/'.$this->config['taglib_end'].'\W/is',$content,$matches);

        if($find) {

            //替换TagLib标签

            $content        =   str_replace($matches[0],'',$content);

            //解析TagLib标签

            $array          =   $this->parseXmlAttrs($matches[1]);

            $this->tagLib   =   explode(',',$array['name']);

        }

        return;

    }



    /**

     * TagLib库解析

     * @access public

     * @param string $tagLib 要解析的标签库

     * @param string $content 要解析的模板内容

     * @param boolen $hide 是否隐藏标签库前缀

     * @return string

     */

    public function parseTagLib($tagLib,&$content,$hide=false) {

        $begin      =   $this->config['taglib_begin'];

        $end        =   $this->config['taglib_end'];

        if(strpos($tagLib,'\\')){

            // 支持指定标签库的命名空间

            $className  =   $tagLib;

            $tagLib     =   substr($tagLib,strrpos($tagLib,'\\')+1);

        }else{

            $className  =   'Think\\Template\TagLib\\'.ucwords($tagLib);            

        }

        $tLib       =   \Think\Think::instance($className);

        $that       =   $this;

        foreach ($tLib->getTags() as $name=>$val){

            $tags = array($name);

            if(isset($val['alias'])) {// 别名设置

                $tags       = explode(',',$val['alias']);

                $tags[]     =  $name;

            }

            $level      =   isset($val['level'])?$val['level']:1;

            $closeTag   =   isset($val['close'])?$val['close']:true;

            foreach ($tags as $tag){

                $parseTag = !$hide? $tagLib.':'.$tag: $tag;// 实际要解析的标签名称

                if(!method_exists($tLib,'_'.$tag)) {

                    // 别名可以无需定义解析方法

                    $tag  =  $name;

                }

                $n1 = empty($val['attr'])?'(\s*?)':'\s([^'.$end.']*)';

                $this->tempVar = array($tagLib, $tag);



                if (!$closeTag){

                    $patterns       = '/'.$begin.$parseTag.$n1.'\/(\s*?)'.$end.'/is';

                    $content        = preg_replace_callback($patterns, function($matches) use($tLib,$tag,$that){

                        return $that->parseXmlTag($tLib,$tag,$matches[1],$matches[2]);

                    },$content);

                }else{

                    $patterns       = '/'.$begin.$parseTag.$n1.$end.'(.*?)'.$begin.'\/'.$parseTag.'(\s*?)'.$end.'/is';

                    for($i=0;$i<$level;$i++) {

                        $content=preg_replace_callback($patterns,function($matches) use($tLib,$tag,$that){

                            return $that->parseXmlTag($tLib,$tag,$matches[1],$matches[2]);

                        },$content);

                    }

                }

            }

        }

    }



    /**

     * 解析标签库的标签

     * 需要调用对应的标签库文件解析类

     * @access public

     * @param object $tagLib  标签库对象实例

     * @param string $tag  标签名

     * @param string $attr  标签属性

     * @param string $content  标签内容

     * @return string|false

     */

    public function parseXmlTag($tagLib,$tag,$attr,$content) {

        if(ini_get('magic_quotes_sybase'))

            $attr   =	str_replace('\"','\'',$attr);

        $parse      =	'_'.$tag;

        $content    =	trim($content);

		$tags		=   $tagLib->parseXmlAttr($attr,$tag);

        return $tagLib->$parse($tags,$content);

    }



    /**

     * 模板标签解析

     * 格式： {TagName:args [|content] }

     * @access public

     * @param string $tagStr 标签内容

     * @return string

     */

    public function parseTag($tagStr){

        if(is_array($tagStr)) $tagStr = $tagStr[2];

        //if (MAGIC_QUOTES_GPC) {

            $tagStr = stripslashes($tagStr);

        //}

        //还原非模板标签

        if(preg_match('/^[\s|\d]/is',$tagStr))

            //过滤空格和数字打头的标签

            return C('TMPL_L_DELIM') . $tagStr .C('TMPL_R_DELIM');

        $flag   =  substr($tagStr,0,1);

        $flag2  =  substr($tagStr,1,1);

        $name   = substr($tagStr,1);

        if('$' == $flag && '.' != $flag2 && '(' != $flag2){ //解析模板变量 格式 {$varName}

            return $this->parseVar($name);

        }elseif('-' == $flag || '+'== $flag){ // 输出计算

            return  '<?php echo '.$flag.$name.';?>';

        }elseif(':' == $flag){ // 输出某个函数的结果

            return  '<?php echo '.$name.';?>';

        }elseif('~' == $flag){ // 执行某个函数

            return  '<?php '.$name.';?>';

        }elseif(substr($tagStr,0,2)=='//' || (substr($tagStr,0,2)=='/*' && substr(rtrim($tagStr),-2)=='*/')){

            //注释标签

            return '';

        }

        // 未识别的标签直接返回

        return C('TMPL_L_DELIM') . $tagStr .C('TMPL_R_DELIM');

    }



    /**

     * 模板变量解析,支持使用函数

     * 格式： {$varname|function1|function2=arg1,arg2}

     * @access public

     * @param string $varStr 变量数据

     * @return string

     */

    public function parseVar($varStr){

        $varStr     =   trim($varStr);

        static $_varParseList = array();

        //如果已经解析过该变量字串，则直接返回变量值

        if(isset($_varParseList[$varStr])) return $_varParseList[$varStr];

        $parseStr   =   '';

        $varExists  =   true;

        if(!empty($varStr)){

            $varArray = explode('|',$varStr);

            //取得变量名称

            $var = array_shift($varArray);

            if('Think.' == substr($var,0,6)){

                // 所有以Think.打头的以特殊变量对待 无需模板赋值就可以输出

                $name = $this->parseThinkVar($var);

            }elseif( false !== strpos($var,'.')) {

                //支持 {$var.property}

                $vars = explode('.',$var);

                $var  =  array_shift($vars);

                switch(strtolower(C('TMPL_VAR_IDENTIFY'))) {

                    case 'array': // 识别为数组

                        $name = '$'.$var;

                        foreach ($vars as $key=>$val)

                            $name .= '["'.$val.'"]';

                        break;

                    case 'obj':  // 识别为对象

                        $name = '$'.$var;

                        foreach ($vars as $key=>$val)

                            $name .= '->'.$val;

                        break;

                    default:  // 自动判断数组或对象 只支持二维

                        $name = 'is_array($'.$var.')?$'.$var.'["'.$vars[0].'"]:$'.$var.'->'.$vars[0];

                }

            }elseif(false !== strpos($var,'[')) {

                //支持 {$var['key']} 方式输出数组

                $name = "$".$var;

                preg_match('/(.+?)\[(.+?)\]/is',$var,$match);

                $var = $match[1];

            }elseif(false !==strpos($var,':') && false ===strpos($var,'(') && false ===strpos($var,'::') && false ===strpos($var,'?')){

                //支持 {$var:property} 方式输出对象的属性

                $vars = explode(':',$var);

                $var  =  str_replace(':','->',$var);

                $name = "$".$var;

                $var  = $vars[0];

            }else {

                $name = "$$var";

            }

            //对变量使用函数

            if(count($varArray)>0)

                $name = $this->parseVarFunction($name,$varArray);

            $parseStr = '<?php echo ('.$name.'); ?>';

        }

        $_varParseList[$varStr] = $parseStr;

        return $parseStr;

    }



    /**

     * 对模板变量使用函数

     * 格式 {$varname|function1|function2=arg1,arg2}

     * @access public

     * @param string $name 变量名

     * @param array $varArray  函数列表

     * @return string

     */

    public function parseVarFunction($name,$varArray){

        //对变量使用函数

        $length = count($varArray);

        //取得模板禁止使用函数列表

        $template_deny_funs = explode(',',C('TMPL_DENY_FUNC_LIST'));

        for($i=0;$i<$length ;$i++ ){

            $args = explode('=',$varArray[$i],2);

            //模板函数过滤

            $fun = strtolower(trim($args[0]));

            switch($fun) {

            case 'default':  // 特殊模板函数

                $name = '(isset('.$name.') && ('.$name.' !== ""))?('.$name.'):'.$args[1];

                break;

            default:  // 通用模板函数

                if(!in_array($fun,$template_deny_funs)){

                    if(isset($args[1])){

                        if(strstr($args[1],'###')){

                            $args[1] = str_replace('###',$name,$args[1]);

                            $name = "$fun($args[1])";

                        }else{

                            $name = "$fun($name,$args[1])";

                        }

                    }else if(!empty($args[0])){

                        $name = "$fun($name)";

                    }

                }

            }

        }

        return $name;

    }



    /**

     * 特殊模板变量解析

     * 格式 以 $Think. 打头的变量属于特殊模板变量

     * @access public

     * @param string $varStr  变量字符串

     * @return string

     */

    public function parseThinkVar($varStr){

        $vars = explode('.',$varStr);

        $vars[1] = strtoupper(trim($vars[1]));

        $parseStr = '';

        if(count($vars)>=3){

            $vars[2] = trim($vars[2]);

            switch($vars[1]){

                case 'SERVER':

                    $parseStr = '$_SERVER[\''.strtoupper($vars[2]).'\']';break;

                case 'GET':

                    $parseStr = '$_GET[\''.$vars[2].'\']';break;

                case 'POST':

                    $parseStr = '$_POST[\''.$vars[2].'\']';break;

                case 'COOKIE':

                    if(isset($vars[3])) {

                        $parseStr = '$_COOKIE[\''.$vars[2].'\'][\''.$vars[3].'\']';

                    }else{

                        $parseStr = 'cookie(\''.$vars[2].'\')';

                    }

                    break;

                case 'SESSION':

                    if(isset($vars[3])) {

                        $parseStr = '$_SESSION[\''.$vars[2].'\'][\''.$vars[3].'\']';

                    }else{

                        $parseStr = 'session(\''.$vars[2].'\')';

                    }

                    break;

                case 'ENV':

                    $parseStr = '$_ENV[\''.strtoupper($vars[2]).'\']';break;

                case 'REQUEST':

                    $parseStr = '$_REQUEST[\''.$vars[2].'\']';break;

                case 'CONST':

                    $parseStr = strtoupper($vars[2]);break;

                case 'LANG':

                    $parseStr = 'L("'.$vars[2].'")';break;

                case 'CONFIG':

                    if(isset($vars[3])) {

                        $vars[2] .= '.'.$vars[3];

                    }

                    $parseStr = 'C("'.$vars[2].'")';break;

                default:break;

            }

        }else if(count($vars)==2){

            switch($vars[1]){

                case 'NOW':

                    $parseStr = "date('Y-m-d g:i a',time())";

                    break;

                case 'VERSION':

                    $parseStr = 'THINK_VERSION';

                    break;

                case 'TEMPLATE':

                    $parseStr = "'".$this->templateFile."'";//'C("TEMPLATE_NAME")';

                    break;

                case 'LDELIM':

                    $parseStr = 'C("TMPL_L_DELIM")';

                    break;

                case 'RDELIM':

                    $parseStr = 'C("TMPL_R_DELIM")';

                    break;

                default:

                    if(defined($vars[1]))

                        $parseStr = $vars[1];

            }

        }

        return $parseStr;

    }



    /**

     * 加载公共模板并缓存 和当前模板在同一路径，否则使用相对路径

     * @access private

     * @param string $tmplPublicName  公共模板文件名

     * @param array $vars  要传递的变量列表

     * @return string

     */

    private function parseIncludeItem($tmplPublicName,$vars=array(),$extend){

        // 分析模板文件名并读取内容

        $parseStr = $this->parseTemplateName($tmplPublicName);

        // 替换变量

        foreach ($vars as $key=>$val) {

            $parseStr = str_replace('['.$key.']',$val,$parseStr);

        }

        // 再次对包含文件进行模板分析

        return $this->parseInclude($parseStr,$extend);

    }



    /**

     * 分析加载的模板文件并读取内容 支持多个模板文件读取

     * @access private

     * @param string $tmplPublicName  模板文件名

     * @return string

     */    

    private function parseTemplateName($templateName){

        if(substr($templateName,0,1)=='$')

            //支持加载变量文件名

            $templateName = $this->get(substr($templateName,1));

        $array  =   explode(',',$templateName);

        $parseStr   =   ''; 

        foreach ($array as $templateName){

            if(empty($templateName)) continue;

            if(false === strpos($templateName,$this->config['template_suffix'])) {

                // 解析规则为 模块@主题/控制器/操作

                $templateName   =   T($templateName);

            }

            // 获取模板文件内容

            $parseStr .= file_get_contents($templateName);

        }

        return $parseStr;

    }    

}

